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%I #4 Jun 30 2015 17:15:15
%S 2,5,6,7,10,13,14,15,19,22,21,22,26,29,30,31,34,37,38,39,42,46,47,46,
%T 51,53,55,58,55,57,62,65,66,67,70,73,74,77,79,78,82,86,85,86,91,94,93,
%U 94,101,102,101,102,105,110,109,110,114,118,119,118,122,127
%N (A259565(n) + A259565(n+1)) / 2.
%C All terms are squarefree by definition of A259565.
%H Reinhard Zumkeller, <a href="/A259605/b259605.txt">Table of n, a(n) for n = 1..10000</a>
%o (Haskell)
%o a259605 n = a259605_list !! (n-1)
%o a259605_list = zipWith ((flip div 2 .) . (+))
%o a259565_list $ tail a259565_list
%Y Cf. A259565, A005117, A086517, A259602, A259603, A259604.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, Jun 30 2015